Dried corn cobs can be turned into some of the most unique looking pen designs, a definite eye catcher and conversation starter, especially for corn lovers or those who like gardening or farming. Corn cobs can be cast, dyed, or left natural (as shown) depending on its size.
To create pens as shown in the second photo, pour some thin CA glue into holes and rotate it around until the glue is absorbed. Put some CA on the ends too. Glue in the tubes, use a pen mill or other device to square the ends, then put it on your mandrel to turn.